Stig the only chain that would stand up was Stihl .404 harvester semi chisel chain. Had to be touched up with a file about every 2nd cut. Some of these rolls depending on the grade of paper took up to 5 minutes at WOT to make one cut. With these cull rolls cut in half the paper mill was then able to fit them into their re-pulper and then make a new roll of paper over again.
Good job while it lasted, $100 per hr ,12 hrs a day. The best day me and Robbie had was 45 paper rolls cut. Now the mill has a hydraulic 60" saw to do the work we did.
Our local mill complex is called Tolko Manitoba and their SPX kraft paper is one of the strongest if not the strongest paper in the world , used mainly for making cement bags.
Google Tolko SPX kraft paper.
Willard.